| Rhizoctonia solani | |
|---|---|
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| Microscopic image of Rhizoctonia solani hyphae showing typical right-angled branching | |
Scientific classification 
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| Domain: | Eukaryota |
| Kingdom: | Fungi |
| Division: | Basidiomycota |
| Class: | Agaricomycetes |
| Order: | Cantharellales |
| Family: | Ceratobasidiaceae |
| Genus: | Rhizoctonia |
| Species: | R. solani
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| Binomial name | |
| Rhizoctonia solani J.G. Kühn, 1858
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| Synonyms | |
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Rhizoctonia solani is a species of fungus in the order Cantharellales. Basidiocarps (fruit bodies) are thin, effused, and web-like, but the fungus is more typically encountered in its anamorphic state, as hyphae and sclerotia. The name Rhizoctonia solani is currently applied to a complex of related species that await further research. In its wide sense, Rhizoctonia solani is a facultative plant pathogen with a wide host range and worldwide distribution. It causes various plant diseases such as root rot, damping off, and wire stem. It can also form mycorrhizal associations with orchids.